Electric gas-lighter.



H. D. GRINNELL.

vELECTRIC GAS LIGHTER. APPLIGATION FILED may?, 1910.

Patented Jn. 9, 1912.

F D l l l Il l Irv-7 'I 111m' E I5 I' I2 1 4 I @i l WIS WIT/VESSEL? I4 H.Id D OrO l l V 2 By @w29 f XI i ATTORNEYS HAROLD D. GRINNELL, OFPITTSFIELD, MASSACHUSETTS.

ELECTRIC GAS-LIGHTER.

Specification of Letters Patent.

Patented Jan. 9, 1912.

Application led December 7, 1910. Serial No. 596,048.

To all whom t may concern.'

Be it known that I, HAROLD D. GRINNELL, a cit-izen of the United States,and a resident of Pittsfield, in the county of Berkshire and State ofMassachusetts, have invented a new and Improved Electric Gras- Lighter,of which the following is a full, clear, and exact description.

The invention relates to electric gas lighters, such as shown anddescribed in the application for Letters Patent of the United States,No. 571,910, filed by me on July 14, 1910.

The object of the present invention is to provide a new and improvedelectric gas lighter, more especially designed for high tensioncurrents, and arranged to permitof convenient removal of the sparkpoints, for replacing a burner t-ip by a new one, for cleaning theburner or for other purposes.

For the purpose mentioned, use is made of coiled springs connecting thespark points with binding posts connected with a source of electricalenergy.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 .is a sectional side elevation of the improvement as applied toan acetylene gas burner; Fig. 2 is a cross section of the same on theline 2-2 of Fig. 1; Figf is a sectional plan view of the same on theline 8 3 of Fig. 1; Fig. 4 is a plan view of the burner and the sparkpoint-s held thereon; Fig. 5 is a perspective view of one of the sparkpoints; and Fig. 6 is a plan view of the blank for forming a sparkpoint.

The gas pipe A carrying the acetylene gas or other gas burner tip Bextends through an opening C formed in the bottom C2 of the lamp casingC, and the said gas pipe A is provided with a ange A resting on theupper surface of the bottom C2. On top of the liange A is seated a baseD of a suitable insulating material, and the said base is fastened inposition by bolts E engaging the bottom C2 of the lamp casing C, asplainly indicated in Fig. 2. The base D is provided with a centralopening D through which extends the gas pipe Ai. Binding posts F areheld on the base D and are connected by wires Gr with a source ofelectrical ener and the said binding posts F are provide withtransversely extending arms F supporting hooks F2 engaged by the lowerends of coiled springs H, hooked at their upper ends onto spark points Iattached to the burner tip B. Each of the spark points I is preferablymade from a single strip I of sheet metal (meteor metal or the like),and the said strip I terminates at one end in a point I2 and at theother end 4in, lugs I3 so that when the strip I is bent around theburner tip B, as indicated in Figs..1, 2 and 4, then the lugs I3 arebent around the strip I a distance from the point I2 so as to securelyhold the strip I in place on the burner tip. An L-shaped retaining armI4 extends integrally from one side of the strip I to engage the underside and top of the burner tip with a view to hold the spark points insuch relative position that the points I2 of 4the two spark points areinclose proximity one to the other to permit the spark topass fro-m onepoint to the other with a view to ignite the gas emanating from theburner tip B. By reference to Fig. 1 it will be noticed that the sparkpoints I are arranged at a right angle one to the other, and in suchrelation to the tip that the spark points are below the flame and henceare not unduly influenced by the heat of the flame. The strip I is alsoprovided with an internal hook I5 extending from the side of the strip Idirectly opposite the arm It, and the said hook I5 is engaged by theupper end of the corresponding-spring H, so that the spring Hestablishes an electrical connection between the binding post F and thecorresponding spark point I.

It will be noticed that by the arrangement described, the spring H canbe readily disconnected from the hook I5 to permit of slipping olf thecorresponding spark point I for removal of the same if necessary;y or,if desired, the point I may be removed from the burner tip B by anupward pull, the top of the spring H permitting sufficient movement ofthe point I for its removal without disconnecting it from the spring H.

When it is desired to place a new tip B in position on the gas pipe A,then both springs H are unhooked from the hooks I5 and the spark pointsI are then slipped oil' the burner tip, after which the latter can bereplaced by a new one and the spark point-s I replaced thereon, forconnection wit-h the spring H, to complete the device.

Having thus described my invention, I

claim as neW and desire to secure by Letters Patent:

l. An electric gas lighter having a spark terminal formed of a strip ofsheet metal bent to encircle the burner tip and terminating at one endin a point and at the other end in retaining lugs engaging the strip ata distance from the said terminal, and an L- shaped arm extendingintegrally from one side of the strip for engagement with one side andthe end of the burner tip.

2. An electric gas lighter, having a spark terminal formed of a strip ofsheet metal bent to encircle the burner tip and terminating at one endin a point and at the other end in retaining lugs engaging the strip ata distance from the said terminal, an L- shaped arm extending integrallyfrom one side of the strip for engagement With the end of the burnertip, and a hook formed integrally on one side of the said strip oppositethe said arm.

An electric gas lighter, comprising a base ot insulating material, andhaving an opening, binding posts held in the said base and provided Withhooks, a gas burner having a tip and extending through the opening inthe base, spark points removably secured to the said tip and havinghooks and coiled springs for removable attachment to the said hooks.

4. An electric gas lighter, comprising a burner tip provided Withoppositely disposed portions, a plurality of spark terminals, eachmounted upon one of said oppositely disposed portions, resilient membersof conducting material connected With said spark terminals for holdingthe same upon said oppositely disposed portions, said resilient membersof conducting material having elasticity suiicient to enable said sparkterminals to be disconnected from said oppositely disposed portions, andelectrical connections for establishing electrical communication throughsaid resilient members to said terminals.

In testimony whereof I have signed my name to this specication in thepresence of `two subscribing Witnesses.

HAROLD D. GRINNELL.

Witnesses MILTOR B. WARNER, MARY K. MURPHY.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

